Modify mkdef.pl to recognise and parse prprocessor conditionals of the
form '#if defined(...) || defined(...) || ...' and '#if !defined(...) && !defined(...) && ...'. This also avoids the growing number of special cases it was previously handling (some of them wrongly).
This commit is contained in:
Richard Levitte
parent
487550b61d
commit
d399fdf877
2 changed files with 116 additions and 58 deletions
6
CHANGES
6
CHANGES
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@ -3,6 +3,12 @@
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Changes between 0.9.6 and 0.9.7 [xx XXX 2000]
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*) Modify mkdef.pl to recognise and parse prprocessor conditionals
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of the form '#if defined(...) || defined(...) || ...' and
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'#if !defined(...) && !defined(...) && ...'. This also avoids
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the growing number of special cases it was previously handling.
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[Richard Levitte]
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*) Don't use getenv in library functions when run as setuid/setgid.
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New function OPENSSL_issetugid().
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[Ulf Moeller]
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168
util/mkdef.pl
168
util/mkdef.pl
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@ -54,6 +54,8 @@
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# exclude.
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#
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my $debug=0;
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my $crypto_num= "util/libeay.num";
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my $ssl_num= "util/ssleay.num";
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@ -72,8 +74,8 @@ my $NT=0;
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# Set this to make typesafe STACK definitions appear in DEF
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my $safe_stack_def = 0;
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my @known_platforms = ( "__FreeBSD__", "VMS", "WIN16", "WIN32",
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"WINNT", "PERL5", "NeXT" );
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my @known_platforms = ( "__FreeBSD__", "PERL5", "NeXT" );
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my @known_ossl_platforms = ( "VMS", "WIN16", "WIN32", "WINNT" );
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my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
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"CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
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"RIPEMD",
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@ -315,7 +317,8 @@ sub do_defs
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open(IN,"<$file") || die "unable to open $file:$!\n";
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my $line = "", my $def= "";
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my %tag = (
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(map { "OPENSSL_SYS_".$_ => 0 } @known_platforms),
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(map { $_ => 0 } @known_platforms),
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(map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
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(map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
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NOPROTO => 0,
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PERL5 => 0,
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@ -335,6 +338,8 @@ sub do_defs
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}
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if (/\\$/) {
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chomp; # remove eol
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chop; # remove ending backslash
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$line = $_;
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next;
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}
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@ -347,70 +352,135 @@ sub do_defs
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s/\/\*.*?\*\///gs; # ignore comments
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s/{[^{}]*}//gs; # ignore {} blocks
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#print STDERR "DEBUG: \$_=\"$_\"\n";
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print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
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if (/^\#\s*ifndef\s+(.*)/) {
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push(@tag,"-");
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push(@tag,$1);
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$tag{$1}=-1;
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print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
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} elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
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push(@tag,$1);
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$tag{$1}=-1;
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push(@tag,"-");
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if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
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my $tmp_1 = $1;
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my $tmp_;
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foreach $tmp_ (split '\&\&',$tmp_1) {
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$tmp_ =~ /!defined\(([^\)]+)\)/;
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print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
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push(@tag,$1);
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$tag{$1}=-1;
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}
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} else {
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print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
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print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
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push(@tag,$1);
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$tag{$1}=-1;
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}
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} elsif (/^\#\s*ifdef\s+(.*)/) {
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push(@tag,"-");
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push(@tag,$1);
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$tag{$1}=1;
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print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
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} elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
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push(@tag,$1);
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$tag{$1}=1;
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push(@tag,"-");
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if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
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my $tmp_1 = $1;
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my $tmp_;
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foreach $tmp_ (split '\|\|',$tmp_1) {
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$tmp_ =~ /defined\(([^\)]+)\)/;
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print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
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push(@tag,$1);
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$tag{$1}=1;
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}
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} else {
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print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
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print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
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push(@tag,$1);
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$tag{$1}=1;
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}
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} elsif (/^\#\s*error\s+(\w+) is disabled\./) {
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if ($tag[$#tag] eq "OPENSSL_NO_".$1) {
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$tag{$tag[$#tag]}=2;
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my $tag_i = $#tag;
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while($tag[$tag_i] ne "-") {
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if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
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$tag{$tag[$tag_i]}=2;
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print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
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}
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$tag_i--;
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}
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} elsif (/^\#\s*endif/) {
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my $oldtag=$tag[$#tag];
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#print STDERR "DEBUG: \$oldtag=\"$oldtag\"\n";
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if ($tag{$tag[$#tag]}==2) {
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$tag{$tag[$#tag]}=-1;
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} else {
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$tag{$tag[$#tag]}=0;
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my $tag_i = $#tag;
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while($tag[$tag_i] ne "-") {
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my $t=$tag[$tag_i];
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print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
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if ($tag{$t}==2) {
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$tag{$t}=-1;
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} else {
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$tag{$t}=0;
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}
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print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
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pop(@tag);
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if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
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$t=$1;
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} else {
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$t="";
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}
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if ($t ne ""
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&& !grep(/^$t$/, @known_algorithms)) {
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$unknown_algorithms{$t} = 1;
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#print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
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}
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$tag_i--;
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}
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pop(@tag);
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if ($oldtag =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
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$oldtag=$1;
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} else {
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$oldtag="";
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}
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if ($oldtag ne ""
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&& !grep(/^$oldtag$/, @known_algorithms)) {
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$unknown_algorithms{$oldtag} = 1;
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#print STDERR "DEBUG: Added as unknown algorithm: $oldtag\n";
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}
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} elsif (/^\#\s*else/) {
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my $t=$tag[$#tag];
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$tag{$t}= -$tag{$t};
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my $tag_i = $#tag;
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while($tag[$tag_i] ne "-") {
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my $t=$tag[$tag_i];
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$tag{$t}= -$tag{$t};
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print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
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$tag_i--;
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}
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} elsif (/^\#\s*if\s+1/) {
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push(@tag,"-");
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# Dummy tag
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push(@tag,"TRUE");
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$tag{"TRUE"}=1;
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print STDERR "DEBUG: $file: found 1\n" if $debug;
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} elsif (/^\#\s*if\s+0/) {
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push(@tag,"-");
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# Dummy tag
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push(@tag,"TRUE");
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$tag{"TRUE"}=-1;
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print STDERR "DEBUG: $file: found 0\n" if $debug;
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} elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
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&& $symhacking) {
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my $s = $1;
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my $a =
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$2.":".join(",",
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grep(!/^$/,
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map { $tag{"OPENSSL_SYS_".$_} == 1 ?
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$_ : "" }
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@known_platforms));
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$rename{$s} = $a;
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my $a = $2;
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my $a1 = join(",",
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grep(!/^$/,
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map { $tag{$_} == 1 ?
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$_ : "" }
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@known_platforms));
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my $a2 = join(",",
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grep(!/^$/,
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map { $tag{"OPENSSL_SYS_".$_} == 1 ?
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$_ : "" }
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@known_ossl_platforms));
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if ($a1 eq "") { $a1 = $a2; }
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elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
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$rename{$s} = $a.":".$a1;
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print STDERR "DEBUG: $file: defined $s = $a\n" if $debug;
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}
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if (/^\#/) {
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@current_platforms =
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grep(!/^$/,
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map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
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$tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_ : "" }
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map { $tag{$_} == 1 ? $_ :
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$tag{$_} == -1 ? "!".$_ : "" }
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@known_platforms);
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push @current_platforms
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, grep(!/^$/,
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map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
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$tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_ : "" }
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@known_ossl_platforms);
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@current_algorithms =
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grep(!/^$/,
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map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
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@ -597,27 +667,9 @@ sub do_defs
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# Prune the returned symbols
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$platform{"crypt"} .= ",!PERL5,!__FreeBSD__,!NeXT";
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delete $syms{"SSL_add_dir_cert_subjects_to_stack"};
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delete $syms{"bn_dump1"};
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$platform{"BIO_s_file_internal"} .= ",WIN16";
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$platform{"BIO_new_file_internal"} .= ",WIN16";
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$platform{"BIO_new_fp_internal"} .= ",WIN16";
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$platform{"BIO_s_file"} .= ",!WIN16";
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$platform{"BIO_new_file"} .= ",!WIN16";
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$platform{"BIO_new_fp"} .= ",!WIN16";
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$platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
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if(exists $syms{"ERR_load_CRYPTO_strings"}) {
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$platform{"ERR_load_CRYPTO_strings"} .= ",!VMS,!WIN16";
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$syms{"ERR_load_CRYPTOlib_strings"} = 1;
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$platform{"ERR_load_CRYPTOlib_strings"} .= ",VMS,WIN16";
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}
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# Info we know about
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push @ret, map { $_."\\".&info_string($_,"EXIST",
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@ -687,7 +739,7 @@ sub maybe_add_info {
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if (!defined($dummy) || $i ne $dummy) {
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$nums{$s} = $n."\\".$i;
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$new_info++;
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#print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n";
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print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
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}
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}
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$syms{sym} = 1;
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@ -698,7 +750,7 @@ sub maybe_add_info {
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(my $n, my $i) = split /\\/, $nums{$sym};
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if (!defined($syms{sym})) {
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$new_info++;
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#print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n";
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print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n if $debug";
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}
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}
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if ($new_info) {
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@ -939,7 +991,7 @@ sub rewrite_numbers
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my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
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foreach $sym (@s) {
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(my $n, my $i) = split /\\/, $nums{$sym};
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#print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n";
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print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
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next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
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next if defined($rsyms{$sym});
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$i="NOEXIST::FUNCTION:"
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